ubuntu 18.10 installation crashed on an Intel NUC

[lyakh]

I'm having trouble installing grub on this machine. In the beginning I had an android boot-loader installed on it, that worked, then I wiped android and installed grub2, that worked too. After one of recent updates the android2 bootloader re-emerged, but since there was no more android on the system, it used to hang. Still, using the BIOS "select boot medium" I was able to boot into the grub. Then I tried to repair that and then I lost even that ability. Now I tried to install ubuntu to repair that and it failed too.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: ubiquity 18.10.12
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
CasperVersion: 1.399
CurrentDesktop: ubuntu:GNOME
Date: Sun Nov 25 16:39:02 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 LC_NUMERIC=C.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)